package homework_02.home01;

public class Demo_03 {
    public static void main(String[] args) {
        int score=95;
        if(score>90){
            System.out.println("A");
        }else if(score>80){
            System.out.println("B");
        }else if(score>70){
            System.out.println("C");
        }else if(score>60){
            System.out.println("D");
        }else{
            System.out.println("不及格");
        }
    }
}
